<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="box"></div>
    <script>
      const box = document.getElementById("box");

      const p = document.createElement("p");
      const div = document.createElement("div");
      const b = document.createElement("b");
      
      const df = new DocumentFragment(); // <></>
      df.append(p, div, b, df);

      box.append(df);
      console.log(df);
    </script>
  </body>
</html>
